Improvement in the art of spinning yarn on spinning-mules



2` Sheets-Sheet. 1,.

E., A. BALDWIN. Art 0f Spinning Yarn on Spinning-Mules.

N. PETERS. FHDTO-LITHOGRAPHER. WASHINGTONv D C.

2 Sheets-Sheet 2.

E: A. BALDWIN.

Art ofSpnningYarn on Spinning-Mules; No. 209,318. Patented Oct. 29,1878.

Figi.

WQEEEE af WM 4 www N-PETEHS, PHOTO-LITHOGRAFHER, WASHINGTON, D. C,

UNITED STATES PATENT OEEICE.

EBEN A. BALDVIN, OF NORTH ANDOVER, MASSACHUSETTS, ASSIGNOR TO GEO. L.DAVIS, JOHN A. WILEY, JOS. M. STONE, GEO. Gr. DAVIS, JOSEPH H. STONE,AND JAMES H. DAVIS.

IMPROVEMENT IN THE ART OF-SPINNING YARN 0N SPINNING-MULES.

Specification tbrming part of Letters Patent No. 209,318, dated October29, 1878 application filed July 20, 1878.

To all whom it may concern:

Be it known that I, EBEN A. BALDWIN, of North Andover, county of Essex,State of Massachusetts, have invented an Improvement in the Art ofSpinning Yarn on Spinning- Mules, of which the following description, inconnection with the drawings forming a part thereof, is a specification.

This invention relates to an improvement in the art or method ofspinning yarn on spinnin g-mules having two independent sets ofdelivery-rollers, to permit rovings of different weight and size to bespun thereon at the same time, and produce yarns of equal weight andsize, which consists in delivering the rovings by one of said sets ofrollers at a greater rate of speed than by the other set, substantiallyas hereinafter described.

The mule-head stock has two independent sets of delivery-rollers, whichare operated at different speeds, the rolls delivering the rovings ofleast weight being run faster than the rolls which deliver the rovingsof -greatest weight, whereby the rovin gs of greatest weight arestretched during the outward movement of the carriage more than are therovings of least weight, and the yarns or threads spun from said rovings of different weights are made of equal weight and size. In anotherapplication filed in the United States Patent Office concurrently withthis I have shown how this result can be accomplished by stopping oneportion. or set of the rolls in advance of other portions or sets.

In this present invention I have connected the delivering-rollers at oneside of the headstock with those at the other side by means of aspeed-changing or compound gear, which will drive the portions of thedelivering-rollers with which it is in driving connection at either agreater or less speed than the other portions of the feed-rollers or theother set of rollers of the samehead-stock.

This invention is an improvement upon the McGovern mule -described inUnited States Letters Patent No. 193,87 7 August 7 187 7, to whichreference may be had.

Figure 1- represents, in top view, a sufficient portion of a woolen-muleto, in connection with this specification, enable one conversant withmules to practice my invention. In the said figure the top rolls areremoved. Fig. 2, a section on the line x a2, Fig. 1; Figs. 3 and' 4,details to be referred to; and Fig. 5, a side elevation of the compoundor speed-changing gear, looking at it from the section-line y y, Fig. 1.

In this my invention I have used the same letters to designate partslike those referred to in my other application.

The delivering-roller a, at the right-hand side of the mule as theoperator stands to spin, has a pinion, b, which, through a side wheel,c, moves the pinion d on the roving-drum e. At or near the frame part a2this roller ahas a pinion, f, which engages an idle-wheel, g2, and turnsa pinion, g, at the end of the front roller. h. This roller a has fixedto it aworm, i, notched to receive prongs 4. on a clutch, 6, fitted toslide on the shaft ce under the action of a lever, n, pivoted at 8 andforkedat m to embrace the clutch, it being adapted to be thrown intoengagement with the loose sleeve j, positively rotated by means of thebevelpinion L n shaft l, or by any other suitable or well-known devices,the sleeve having teeth at one side to engage corresponding teeth of theclutch, and rotate the rollers a and It with it. Farther along on thisroller a is a iixed pinion, b2, which engages the gear-wheel c2,supported on the adjustable stud d2 in the stand c2, the same stud alsocarrying a gear-wheel, f2, of different diameter, (see Fig. 1 and dottedlines, Fig. 5,) which is connected and moves with the gear-wheel c2, thesaid gearwheels constituting a compound or changingspeed gear.

The gear f2 meshes into the pinion gl on the roller-shaft It', thepinion g1 into an idle-wheel like g2, and the said idle-Wheel engages apinion, f1, on the roller-shaft al, which shattis in turn provided witha pinion, b', which, through an idle-wheel, c1, actuates the toothedwheel d1 on the shaft of the roving-drum el.

The two gears c2 f 2, being of different diameters and on the same stud,are enabled the one to be actuated at one speed and cause the other toactuate at another speed the pinion with which it is in gear.

As shown in the drawings, the gear c2 is driven from the shaft of rollera, and the gear f2 is made to drive the shaft of roller a1, in line withit or the set of rollers at that end of the head-stock, at an increasedspeed, Whereby the smaller rovings or those of least weight placed atthat end of the head-stock on drum el will be delivered faster than thelarger or heavier rovings delivered by the set of rolls a h at theopposite end of the head-stock. Instead of this particular compoundgear, it is obvious that I may employ any other Wellknown form of gearwhich will change the rates of speed of connected shafts.

In this speciication, so far described, provision has been made torotate the set or" rolls a1 h at a faster speed than the set of rolls ah,- but it is obvious if the spools containing the smaller rovings wereplaced on the drum e, andthe spools containing the larger or heavierrovings on the drum el, that the compound gear would have to be changed,so as to run the rolls a* h the slowest, which would be accomplished inthe following manner, viz:

' The stud d2 would be loosened and moved in the direction of the arrow,Fig. 5, and the gear f2 would be changed for a gear just like it, exceptas to diameter, the said substituted gear being of greater diameter thangear c2.

The lever n, pivoted on stud 8 and provided with an opening or notch, p,to receive the arm 12, connected with the rocker-shaft r, carries astud, 10, on which is mounted a clock, o, or contrivance which acts toregulate the duration of movement of the delivering-rollers, the saidclock being provided with a timepin, 23, which, during the rot-ation ofthe clock, its teeth being in engagement with the rotating wormt', asshown in Fig. 1,will act upon a projection, x', attached to the catch w,and will move the said catch so as to release the arm 12, permit thespring 24 to turn the arm 12 so as to operate ,the lever u, move theclutch 6 from engagement with the teeth of the sleeve j, and therebystop at the desired time the rotation of the shaft a of the set ofdeliverin g-rollers a h. This movement of the lever disengages the clockfrom the worm i, and the weighted cord 26 returns the clock to its'normal or starting position, ready to be again moved when the clutch 6is engaged with the sleeve to start the delivering rollers as thecarriage again runs out. The arm s connected with thevrock-shaft isstruck by a roller on or by the carriage, as shown in dotted lines, Fig.2, when thelatterin its inward run reaches the said arm, thereby rockingthe shaft r, and causing its arm l2 to be moved to operate the lever n,engage the clutch 6, and set the rollers in motion.

A spring, 19, (see Fig. 2,) on stud 17 acts to move the catch w toengage the arm 12.

The gear fz has a pin, x2, which enters a hole in gear c2, so that gearc2 moves the gear f2.

l claim- That improvement in the art of spinning yarn on spinning-muleshaving two independent sets of delivery-rollers, to permit rovings ofdierent weight and size to be spun thereon at the same time and produceyarns of' equal weight and size, which consists in delivering therovings by one ot' said sets of rollers at a greater rate of speed thanby the other set, substantially as herein specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EBEN A. BALDWIN.

Witnesses:

J. LEONARD TAT'IERSALL, DAVID HALLIDAY.

